How do I do a N272 DAB rescan?

I have a NAC-N272, software 4.4 and the FM Dab module. I moved several counties, so while the BBC multiplex is in the same place as well as a surprising number of other stations, which works fine on DAB, I have some stations from the old place that aren't there, and presumably some in the new place that aren't there. Section 6.2 on page 22 of the manual seems to say I can select DAB and press the handset OK/list key to scan, but it gives me a list of what I have already.

So how do I kick off a DAB rescan? FM seemed to sort itself out from RDS, but I could tune that with the next button. No such luck on DAB, I get the next slot of the previously stored list.